The beauty of grinding oatmeal -- or steel-cut or rolled oats or even oat groats for that matter -- is that you can create tiny portions of oat “flour” that stay fresh for your immediate needs. You can then mix your “just in time” inventory of ground oatmeal in smoothies or gluten-free baked goods. ...

Save money and ensure the purity of your own instant oatmeal or oat flour. Instant oatmeal requires the least amount of cooking time, but packaged products can have salt, sugar or artificial flavorings added. Old-fashioned rolled oats are not nearly as convenient, and they require a longer time to cook. With a coffee grinder, blender or food processor, you can turn old-fashioned rolled oats into your own instant oatmeal or oat flour